Spermidine

Michael Witty <mw132 at mole.bio.cam.ac.uk> wrote in message news:<Pine.SGI.4.33.0405121225580.85136464-100000 at mole.bio.cam.ac.uk>...
> Dear All,
> spermidine is supposed to be unstable, but I wonder how if can tell if
> mine has gone off? It is part of my DNA precipitation recipe and my DNA
> dissappears from solution and reapears when I add a low salt buffer. Just
> curious reallyl.
> Mike.
aaaaaaaaaaaaaaaaa... forgot to tell Ya:
the precipitate MEANS that YOUR REACTION is very EFFICIENT... that is
why sometimes you do not get the whitish precipitate :)
Cheers